Solveeit Logo

Question

Question: The stability of dihalides of Si, Ge, Sn and Pb increases steadily in the sequence:...

The stability of dihalides of Si, Ge, Sn and Pb increases steadily in the sequence:

A

GeX2< SiX2< SnX2< PbX2

B

SiX2< GeX2< PbX2< SnX2

C

SiX2< GeX2< SnX2< PbX2

D

PbX2< SnX2< GeX2< SiX2

Answer

SiX2< GeX2< SnX2< PbX2

Explanation

Solution

Due to the inert pair effect (the reluctance of ns2 electrons of outermost shell to participate in bonding), the stability of M2+ ions (of group IV elements) increases as we go down the group.